This paper presents an approach for tracking nonstationary
moving sources with both time-varying directions-ofarrival
(DOAs) and time-varying polarization signatures.
The proposed approach is based on the spatial polarimetric
time-frequency distributions (SPTFDs). Unlike the conventional
correlation matrix based approaches that sacrifice
the source signal polarization properties and are not
properly structured to utilize polarization diversity, the proposed
approach uses the signal instantaneous polarization
and instantaneous frequency information for improved target
tracking and polarization estimation.